19
THURSDAY, OCTOBER 26, 1989
THE SYSTEM FOR GRADING BEACH WATER QUALITY IS AS FOLLOWS:
"A" GRADE INDICATES THAT THE WATER QUALITY IS GOOD. THE MEAN E. COLI COUNT IS LESS THAN 100 PER 100 MILLILITRES AT EACH BEACH SO GRADED, AND THE EXPECTED HEALTH RISK IS LESS THAN SEVEN CASES OF MINOR ILLNESS PER 1,000 SWIMMERS.
"B" GRADE INDICATES THAT THE WATER QUALITY IS ACCEPTABLE. THE MEAN E. COLI COUNT IS LESS THAN 1,000 PER 100 MILLILITRES AT EACH BEACH SO GRADED, AND THE EXPECTED HEALTH RISK IS LESS THAN 18 CASES OF MINOR ILLNESS PER 1,000 SWIMMERS.
"C" GRADE INDICATES THAT THE WATER QUALITY IS POOR. THE MEAN E. COLI COUNT IS 1,000 OR MORE PER 100 MILLILITRES AT EACH BEACH SO GRADED, AND THE EXPECTED HEALTH RISK IS 18 OR MORE CASES OF MINOR ILLNESS PER 1,000 SWIMMERS,
THE DECISION WHETHER OR NOT TO CLOSE A BEACH ΤΟ SWIMMERS 18 BASED ON A JUDGEMENT OF WHAT DEGREE OF POLLUTION IS ACCEPTABLE.
NORMALLY, A RECOMMENDATION ON CLOSURE WOULD ONLY BE CONSIDERED BY THE URBAN OR REGIONAL COUNCIL IF A "C" GRADING OCCURRED REPEATEDLY, SO THAT THE AVERAGE HEALTH RISK OVER THE BATHING SEASON EXCEEDED 15 CASES PER 1,000 SWIMMERS.
SIMILARLY, A RECOMMENDATION TO RE-OPEN A CLOSED ONLY BE CONSIDERED IF A "B" GRADE OR BETTER WERE OBTAINED.
BEACH WOULD
CONSISTENTLY
UNSUITABLE
AT PRESENT, SIX BATHING BEACHES HAVE BEEN DECLARED FOR SWIMMING PURPOSE, BASED ON THE WATER QUALITY DURING PAST SEASONS. THESE BEACHES ARE ANGLERS'. CASTLE PEAK, SILVERMINE BAY, CAFETERIA, ROCKY BAY AND TING KAU.
THEY ARE POLLUTED BY FAECAL WASTES CONSISTENTLY THE WORLD HEALTH ORGANISATION AND THE PUBLIC ARE ADVISED NOT TO SWIM IN IDENTIFIED BY AN "X" IN THE FOLLOWING TABLE.
THESE
OLD
AND FAIL ΤΟ ACHIEVE HONG KONG STANDARDS. SIX BEACHES. THEY ARE
VARIOUS BEACHES
THE GRADES ON THE BACTERIAL WATER QUALITY OF IN HONG KONG AS AT TODAY AND TWO WEEKS AGO ARE LISTED BELOW:
BEACH
HONG KONG SOUTH
LAST GRADING
PRESENT GRADING
(AS AT 12.10.89)
(AS AT 26.10.891
BIG WAVE BAY
A
A
CHUNG HOM KOK
A
A
DEEP WATER BAY
A
A
/HAIRPIN
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